There are some injuries that are common to all types of extreme sports. The following are some of the important things to do to prevent extreme sports injuries. {#blank#}1{#/blank#} But they can definitely minimize the risk of injuries.

    Warm up.

    {#blank#}2{#/blank#} They include a combination of cardiovascular(心脏血管的)exercises, strength drills and stretching. Cardiovascular exercises increase body temperature, heart rate and blood circulation, which is required for further movement of the body. Strength drills increase the stamina of the body, while stretching warms up the muscles preparing them for sudden forceful movements. {#blank#}3{#/blank#} It also plays an important role in boosting the team spirit for a team sport. A warm-up session should last for at least 20 minutes and it can extend up to half an hour.

    Avoid overworking.

    There are some people who do not exercise their body for the sport on a regular basis and perform a week's task in a day or two. {#blank#}4{#/blank#} They do not realize the effect of overworking during the performance and keep doing it until they feel extremely tired. Apart from the actual sport, one should also avoid overdoing the warm-up exercises before the activity.

    {#blank#}5{#/blank#}

    Just as warming up is essential before any rigorous(充满活力的) physical activity, cooling down the body after playing a rigorous sport is also a significant part of physical conditioning. When you are done with your sports session, you can conclude with some walking, jogging or light running. Slight stretching exercises, focusing on specific muscles, will also be useful for cooling down the body.

A. Cool yourself down.

B. Look for a coach to train you.

C. These people are likely to suffer from extreme sport injuries.

D. However, there are no perfect methods which can assure you 100% safety.

E. Along with physical preparation, warming up prepares you mentally to begin a sport.

F. You should also be careful about your clothing selection for warmth and protection.

G. Warm-up exercises are very important before you begin any sports practice.

    Located in the checkroom in Union Station as I am, I see everybody that comes up the stairs.

Harry came in a little over three years ago and waited for the passengers from the 9:05 train.

    I remember seeing Harry that first evening. He wasn't much more than a thin, anxious kid then and I knew he was meeting his girl and that they would be married twenty minutes after she arrived. The passengers came up and I had to get busy. I didn't look toward the stairs again until it was nearly time for the 9:18 train and I was very surprised to see that the young fellow was still there.

    She didn't come on the 9:18 either, nor on the 9:40, and when the passengers from the 10:02 had all arrived and left, Harry was looking pretty desperate. He showed me the telegram he'd received: ARRIVE THURSDAY. MEET ME STATION. LOVE YOU. MAY.

    Harry met every train for the next three or four days, but in vain.

    Then came yesterday. I heard a cry and found that it was from Harry. He grabbed a girl who was small and dark. For a while they just hung there to each other laughing and crying and saying things without meaning. She'd say a few words like, "It was the bus station I meant" and he'd kiss her speechless and tell her the many things he had done to find her. What apparently had happened three years before was that May had come by bus, not by train, and in her telegram she meant "bus station," not "railroad station." She had waited at the bus station for days and had spent all her money trying to find Harry. Finally she got a job typing.

    "What?" said Harry. "Have you been working in town? All the time?"

    She nodded.

    "Didn't you ever come down here to the station?" He pointed across to a magazine stand. "I've been there all the time. I own it. I've watched everybody that came up the stairs."

    She began to look a little pale. Pretty soon she looked over at the stairs and said in a weak voice, "I never came up the stairs before. Harry, for three years, for three solid years, I've been right over there working right in this very station, typing, in the office of the stationmaster."

    While staring out of the window during a flight, not everyone will think carefully about the question why airplanes have rounded windows rather than square ones.

    Over the years, aerospace engineering has made huge steps in airplane technology, meaning planes can carry more passengers and go faster. The planes have also changed shape to increase safety—including the windows. As commercial air travel took off in the mid－20th century, airline companies began to fly at higher altitudes to lower their cost—the air density(密度) is lower up there, creating less drag(阻力)for airplanes. However, higher altitudes came with problems, like the fact human beings can't really survive at 30，000 feet. To make that possible, the cabin was changed to a cylindrical(圆柱体) shape to support the pressure inside. But at first, plane builders left in the standard square windows and this expansion meant disaster. The de Havilland Comet came into fashion in the 1950s. With a closed cabin, it was able to go higher and faster than other aircraft.

    However, where there's a corner, there's a weak spot. Windows, having four corners, have four potential weak spots, making them likely to crash under stress—such as air pressure. By curving the window, the stress that would eventually break the window corner is distributed and the chance of it breaking is reduced. Rounded shapes are also stronger and resist deformation(变形), and can thus survive the extreme differences in pressure between the inside and outside of the aircraft.

    Fortunately, designers figured out the lack of design pretty quick. Now we have nice, rounded airplane windows that can resist the pressure of traveling altitude. It gives being able to gaze out of your window to the world from 35，000 feet a whole new outlook, doesn't it?

    Go to NYU Precollege Summer Program

    Make the most of your summer vacation with this six-week academic summer camp for high school juniors and seniors. Earn college credits, explore New York City(NYC), and experience academic and student life at New York University(NYU), Scholarships are available.

    Participants

    NYU Precollege summer camp offers rising high school juniors and seniors the opportunity to experience academic and student life at New York University. Teens take college-level courses for academic credits which may be applied to a future degree. Residential（住校的）and non-residential choices are available.

    What to do

    Participants take credit-bearing（学分计的）courses with current college students. Courses are available in over 36 subjects. Students can explore the archeological（考古学的）history of New York City, visit major New York sports equipment, learn the business of sports management, begin to master the Chinese language, practice the art of news reporting, or dig into the service industry while going behind the scenes at Manhattan hotels and restaurants.

    Additionally, students have the opportunity to participate in free noncredit seminars taught by NYU's distinguished writing experts. The seminars offer students an opportunity to improve writing skills and focus on college-level writing.

    Harvest Outside the classroom, NYU Precollege offers seminars regarding the college admissions and application process, as well as a variety of on-and-off-campus social event and activities. NYU Precollege summer camp allows outstanding teens to get a taste of college while still having time to work or volunteer outside of school, and enjoy the summer vacation.

The cuisine that marks Christmas is as diverse as the people feasting on it. Here's a look at how the locals celebrate Christmas through cuisine in their countries, which will give you a glimpse of the celebrations.

England

The real festivities start on Christmas morning with champagne and smoked salmon. After the King's or Queen's annual Christmas speech, it's time for the main meal, typically including a turkey or roast beef accompanied by various side dishes.

France

The French celebrate their Christmas Eve with a lavish meal, with seafood served first. The main course usually consists of a rooster that's renowned for its tenderness. Fine red wine from Burgundy can't be missed of course.

Italy

Similar to France, Italians celebrate Christmas on the eve. The locals typically attend midnight Mass and then indulge in a lavish meal before heading to church. For the main course, northern Italians often have stuffed turkey, while those in seaside areas may feast on a large baked sea bass accompanied by roasted potatoes and vegetables.

Greece

After attending an early morning holy communion in church on Christmas, Greeks go home for an all-day eating gathering. Families gather around the fireplace, feasting on a special w heat bread only made at Christmas. Later, the main course may include roast chicken stuffed with chestnuts.

AI-generated content has recently won big in the literary world. Japanese author Rie Kudan won one of Japan's most famous literary awards, the Akutagawa Prize, with the help of ChatGPT in The Tokyo Tower of Sympathy. 

The book is set in future Japan, where AI has become an important part of people's lives. The story centers around an architect who creates a comfortable prison but struggles with a society that she sees as being overly sympathetic to criminals. 

Kudan admitted at a news conference that "around 5 percent of the book's text was taken directly from generative AI," reported kyodo News. She added that there is a scene in the book where an AI chatbot answers the main character's questions and she used AI-generated text in the responses given by AI in the story. The word-for-word content generated by AI was applauded by committee members as "practically flawless", said CNN. 

This is not the first time that Al-related works have won prizes. In October 2023, The Land of Machine Memorieswas awarded second prize at China's fifth youth popular science and science fiction competition. The fiction was fully created by AI with the prompts (提示) given by Shen Yang, a professor at Tsinghua University. Surprisingly, just one judge among the six of the competition realized that what they were reading was the product of a machine. 

So will literature in the future be all about AI? Debates are still ongoing on the matter. Japanese literary critic Akira Okawada told Tyodo News that "it is difficult for AI to create work that addresses ethical themes in depth". However, Chinese writer Luo Ping holds the positive view. "Improvements in technology will not cause human laziness in creating, but rather will only make them involved in more heated competition. With the help of technology, the starting point of human thinking will only grow higher," Luo told Hongxing News. 

"I think this is only the beginning for AI in creating literature," Fu Changyi, a member of Jiangsu Popular Science Writers Association, told online news Guancha. "We will wait and see how the future goes," he added.